giglez/docs/PHASE2_PROGRESS.md

Phase 2: Upload System - Progress Report

Date: 2026-01-12 Status: Core Implementation Complete (60%) Next Session: Authentication + Background Tasks

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✅ Completed (Session 1)

1. Environment-Aware Configuration ✅

Files: .env.development, .env.production, config/settings.py

• Complete environment detection and validation
• Mode-specific settings (development vs production)
• Validation on startup with error reporting
• Computed properties (is_production, use_redis, etc.)

2. FastAPI Application Structure ✅

File: src/api/main.py (280+ lines)

Features:

• Lifespan management (startup/shutdown)
• Configuration validation on startup
• Database connection testing
• Storage backend initialization
• CORS middleware (environment-aware)
• GZip compression
• Request timing middleware
• Request logging
• Global exception handler (debug vs production mode)
• Root endpoints (/, /health, /version)
• Conditional route loading (hardware, debug)

3. Storage Abstraction Layer ✅

Files: src/core/storage/*.py (400+ lines)

Implementations:

• StorageBackend - Abstract base class
• LocalStorage - Filesystem storage (development)
  • Content-addressed storage (SHA256 sharding)
  • Automatic directory creation
  • Storage statistics
• S3Storage - S3-compatible storage (production)
  • AWS S3, MinIO support
  • Presigned URLs
  • Bucket validation
  • Storage statistics
• factory.py - Automatic backend selection

Key Features:

• Unified interface for both backends
• SHA256-based content addressing
• File sharding (ab/c1/abc123...sub)
• Exists/delete operations
• URL generation
• Statistics reporting

4. API Dependencies ✅

File: src/api/dependencies.py

Dependencies:

• get_db() - Database session management
• get_current_user() - JWT authentication (environment-aware)
• require_auth() - Force authentication
• optional_auth() - Optional authentication
• get_pagination() - Pagination parameters
• get_storage() - Storage backend

5. Upload Endpoint ✅

File: src/api/routes/captures.py (200+ lines)

Features:

• JSON manifest + multiple .sub files
• SHA256 hash computation (deduplication)
• GPS coordinate validation
• .sub file parsing
• Storage backend integration
• Database persistence
• Session management
• Duplicate detection
• Error handling per file
• Upload summary response

Manifest Format:

{
    "session_uuid": "...",
    "captures": [
        {
            "filename": "capture_001.sub",
            "latitude": 40.7128,
            "longitude": -74.0060,
            "accuracy": 5.0,
            "altitude": 10.5,
            "timestamp": "2026-01-12T10:00:00Z"
        }
    ]
}

6. Route Stubs Created ✅

Files: src/api/routes/*.py

• devices.py - Device catalog
• query.py - Geospatial queries
• stats.py - Platform statistics
• hardware.py - T-Embed control (dev mode)
• debug.py - Debug endpoints (dev mode)

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🚧 Remaining Tasks

1. Authentication System (High Priority)

File: src/api/auth.py (needs creation)

Requirements:

• JWT token generation/validation
• API key management
• Password hashing (bcrypt)
• Login endpoint
• Token refresh
• User registration (optional)

Dependencies:

pip install python-jose[cryptography] passlib[bcrypt]

2. Background Task System (High Priority)

File: src/api/tasks.py (needs creation)

Requirements:

• Synchronous mode (development)
• Celery mode (production)
• Task: Device signature matching
• Task: Materialized view refresh
• Task: Upload marker updates

Conditional Implementation:

if settings.use_celery:
    from celery import Celery
    celery_app = Celery('giglez', broker=settings.celery_broker)
else:
    # Synchronous fallback
    def process_task_sync(func, *args):
        return func(*args)

3. Upload Marker System (Medium Priority)

Integration: Wigle incremental sync pattern

Requirements:

• Track last uploaded capture per user/session
• Query unuploaded captures
• Update marker on successful upload
• Enable resume after failure

4. Query Endpoints (Medium Priority)

File: src/api/routes/query.py (expand stub)

Requirements:

• Geospatial queries (radius, bounding box)
• Filter by protocol/frequency/device
• Time range filtering
• Pagination support
• PostGIS spatial queries

5. Rate Limiting Middleware (Medium Priority)

File: src/api/middleware.py (needs creation)

Requirements:

• Per-user rate limiting (production)
• Per-IP rate limiting (fallback)
• Disabled in development mode
• Redis-backed (production) or in-memory (dev)

Dependencies:

pip install slowapi

6. Complete Route Implementations (Low Priority)

Expand stubs in:

• devices.py - Device catalog queries
• stats.py - Platform statistics
• hardware.py - T-Embed control

7. API Tests (Low Priority)

Directory: tests/api/ (needs creation)

Test Coverage:

• Upload endpoint (success, duplicate, invalid GPS)
• Authentication (login, token validation)
• Storage backends (filesystem, S3 mock)
• GPS validation
• Query endpoints

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📊 Progress Statistics

Code Written

• Lines: ~1,400 lines of Python
• Files Created: 15+
• Modules: FastAPI app, storage layer, routes, dependencies

Features Complete

• ✅ Environment configuration (100%)
• ✅ FastAPI application (90%)
• ✅ Storage abstraction (100%)
• ✅ Upload endpoint (95%)
• ✅ Dependencies (80%)
• ⏳ Authentication (0%)
• ⏳ Background tasks (0%)
• ⏳ Query endpoints (20% - stubs only)
• ⏳ Rate limiting (0%)
• ⏳ Tests (0%)

Overall Progress: 60%

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🎯 Architecture Highlights

Hybrid Design Achieved ✅

Development Mode (Termux)      Production Mode (Server)
├── LocalStorage              ├── S3Storage
├── Optional auth             ├── Required auth
├── Synchronous tasks         ├── Celery async
├── No rate limiting          ├── Rate limiting
└── Debug endpoints           └── Production endpoints
        │                              │
        └──────────┬───────────────────┘
                   │
           ┌───────▼────────┐
           │  Shared Core   │
           ├────────────────┤
           │ - Upload API   │
           │ - Storage      │
           │ - Database     │
           │ - Parser       │
           └────────────────┘

Key Patterns Implemented

1. Storage Abstraction - Filesystem or S3 (transparent)
2. Environment Awareness - Settings-based feature flags
3. Optional Authentication - Required in prod, optional in dev
4. Middleware Stack - CORS, GZip, timing, logging
5. Error Handling - Debug vs production error messages
6. Lifespan Management - Startup validation, graceful shutdown

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🚀 How to Test (Current Implementation)

1. Install Dependencies

cd /path/to/giglez
pip install -r requirements.txt
pip install python-multipart  # For file uploads

2. Setup Database (if not done)

./scripts/setup_database.sh
psql -U giglez_user -d giglez -h localhost -f scripts/create_schema.sql

3. Configure Environment

# Use development environment
cp .env.development .env

# Test configuration
python config/settings.py

4. Start API Server

# Development mode with auto-reload
python src/api/main.py

# Or with uvicorn directly
uvicorn src.api.main:app --host 127.0.0.1 --port 8000 --reload

5. Test Endpoints

# Health check
curl http://localhost:8000/health

# API info
curl http://localhost:8000/

# OpenAPI docs
open http://localhost:8000/docs

6. Test Upload (Manual)

# Create test manifest
cat > manifest.json << 'EOF'
{
    "session_uuid": "test-session-001",
    "captures": [
        {
            "filename": "test.sub",
            "latitude": 40.7128,
            "longitude": -74.0060,
            "accuracy": 5.0,
            "timestamp": "2026-01-12T10:00:00Z"
        }
    ]
}
EOF

# Create test .sub file (minimal)
cat > test.sub << 'EOF'
Filetype: Flipper SubGhz Key File
Version: 1
Frequency: 433920000
Preset: FuriHalSubGhzPresetOok270Async
Protocol: Princeton
Bit: 24
Key: 00 00 00 00 00 95 D5 D4
EOF

# Upload
curl -X POST http://localhost:8000/api/v1/captures/upload \
  -F "manifest=@manifest.json" \
  -F "files=@test.sub"

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📝 Next Session Plan

Priority 1: Authentication

1. Create src/api/auth.py
2. Implement JWT token generation
3. Implement token validation
4. Add login endpoint
5. Update dependencies.py with real JWT decoding
6. Test authentication flow

Priority 2: Background Tasks

1. Create src/api/tasks.py
2. Implement sync/Celery abstraction
3. Add signature matching task
4. Integrate with upload endpoint
5. Test both modes

Priority 3: Query Endpoints

1. Expand src/api/routes/query.py
2. Implement geospatial queries (PostGIS)
3. Add filtering and pagination
4. Test performance

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💡 Design Decisions Made

1. Manifest in Form Data (vs Separate File)

Choice: JSON string in form data Reason: Single POST request, no need for separate manifest file upload

2. SHA256 Primary Key

Choice: file_hash as primary key in Capture table Reason: Automatic deduplication at database level (Wigle pattern)

3. Storage Path Sharding

Choice: ab/c1/abc123...sub (first 2+2 chars) Reason: Prevents too many files in single directory (filesystem limits)

4. Temporary File for Parsing

Choice: Write to temp file before parsing Reason: Existing parser expects file path, not bytes

5. Batch Commit

Choice: Commit all captures after loop Reason: Atomicity - all or nothing (can be optimized later with batch size)

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🔧 Technical Debt

Items to Address Later

1. Batch Size: Currently commits all at once, should use 512-batch pattern
2. Parser Interface: Should accept bytes directly, not file path
3. Error Recovery: Partial uploads not resumable (need upload markers)
4. File Validation: Should validate .sub format before parsing
5. Response Size: Large uploads return large responses (consider streaming)
6. Async Storage: Storage operations are sync (could be async)

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📚 Documentation Status

Created

• ✅ DEPLOYMENT_CONSIDERATIONS.md - Comprehensive guide
• ✅ DEPLOYMENT_SUMMARY.md - Quick reference
• ✅ .env.development - Development config
• ✅ .env.production - Production config
• ✅ PHASE2_PROGRESS.md - This document

Needed

• ⏳ API usage guide
• ⏳ Authentication guide
• ⏳ Deployment guide (production)
• ⏳ Testing guide
• ⏳ Troubleshooting guide

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✅ Ready for Next Session

Current State: Core upload system functional Blocking Issues: None Dependencies: python-jose, passlib (for auth) Next Priority: Authentication system

Command to Continue:

Let's implement authentication - JWT tokens and API keys

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Session End: 2026-01-12 Phase 2 Status: 60% Complete Next Session: Authentication + Background Tasks